Acoustic Teaser Songcraft • PopBase Spotlight

Acoustic Songcraft & Harmonies Studio

Multi-track vocal harmonies, fingerpicked open chords & dynamic room swells
92 BPM
Multi-Track Vocal Layers & Guitar
Tone.js Polyphony Active
HARMONY DEPTH: 4-VOICE RESONANCE: WARM TAPE KEY: D MAJOR
● Lead Vocal Melodic Center (F#4 - D4)
● High Harmony +3rd / +6th Sweetener
● Low Anchor Tonal Grounding (-Oct/+4th)
● Airy Whisper Intimate High Double
● Acoustic Guitar Travis Pick Arpeggiator
Open Acoustic Chords (4-Bar Loop)
Click bar to preview
Dadd9 BAR 1
D - F# - A - E
Gmaj7 BAR 2
G - B - D - F#
Bm11 BAR 3
B - D - F# - A - E
A6sus4 BAR 4
A - D - E - F#
Dynamic Room Swell & Emotional Tension
Draw or Click Curve
Bar 1: Intimate Verse Bar 2: Syllable Climax Bar 3: Harmonic Release Bar 4: Breath Out
Vintage Acoustic Space & Tape Filter
Room Reverb 45%
Tape Warmth 62%
Vocal Air / Chorus 38%
Songcraft Phrase & Syllable Meter: 4-Bar Teaser Lyric

Step mapping, voice counts and a zero-value fallback

Read the explanation

Eight step indices map to four chord slots by flooring index divided by two. Steps zero and one use chord zero; two and three use chord one; four and five chord two; six and seven chord three. Two growing bars represent two steps per chord and eight steps in the loop at forty pixels per step, giving eighty and three hundred twenty pixels. This explains the source scheduler mapping, not a guarantee of eight audible notes or a music-theory claim. A muted stem and an inactive step are separate conditions, and the external Tone library is required for actual synthesis. Offline export and visual controls can be checked separately from successful audio playback. The displayed consonance score counts non-guitar tracks with at least one active step and not muted. It starts at seventy two, adds six for each such voice, and adds rounded reverb times eight, clamped to sixty eight through ninety nine. At default reverb point four five, the rounded contribution is four. Four voices therefore produce one hundred before the cap, displaying ninety nine. If no voices qualify, it displays seventy six. These bars share four pixels per score point, reaching three hundred ninety six and three hundred four. This formula does not examine note intervals, key compatibility, recording quality or actual sound. A label saying Pure is a source heuristic, not measured harmonic consonance. Step amplitude uses the chosen swell-curve value, but the source expression substitutes point six when that value is falsy. A curve point of zero therefore behaves as point six in the audio trigger rather than silence. The default first value point three five gives lead velocity point eight times point three five, or point two eight. A zero first value instead gives point eight times point six, or point four eight. The two bars use six hundred pixels per velocity unit, reaching one hundred sixty eight and two hundred eighty eight. These are scheduler velocity arguments, not measured loudness. The exported curve can still contain zero, so inspect source behavior instead of assuming the visual curve defines silence.

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